Eroare de compilare: user.cpp:2:23: error: iostream.h: No such file or directory user.cpp:3:23: error: fstream.h: No such file or directory user.cpp:27:17: warning: multi-character character constant user.cpp: In function ‘int main()’: user.cpp:21: error: ‘ifstream’ was not declared in this scope user.cpp:21: error: expected ‘;’ before ‘f’ user.cpp:22: error: ‘ofstream’ was not declared in this scope user.cpp:22: error: expected ‘;’ before ‘g’ user.cpp:23: error: ‘f’ was not declared in this scope user.cpp:27: error: ‘g’ was not declared in this scope user.cpp:30: error: ‘g’ was not declared in this scope